bug#36516: Wrong dynamic abbrev expansion after space

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: 36516@debbugs.gnu.org
> Date: Tue, 09 Jul 2019 00:35:44 +0300
> 
> 0. emacs -Q
> 1. Type these two lines:
> str 1
> str 2
> 2. On the third line type:
>  s                      ;; self-insert-command
>  M-/                    ;; dabbrev-expand
>  SPC                    ;; self-insert-command
>  C-M-/                  ;; dabbrev-completion
> 
> This correctly displays all available completions
> “str 1” and “str 2”.  But ‘s M-/ SPC M-/ M-/’ doesn't get
> the second completion.

It does, if you type M-/ a couple more times.